NuPrime STA-9X Effektförstärkare Slutsteg Svart
NuPrime STA-9X Effektförstärkare Slutsteg Silver
NuPrime STA-9X Effektförstärkare Slutsteg
NuPrime STA-9X Effektförstärkare Slutsteg
NuPrime STA-9X Effektförstärkare Slutsteg Svart
NuPrime STA-9X Effektförstärkare Slutsteg Silver
NuPrime STA-9X Effektförstärkare Slutsteg
NuPrime STA-9X Effektförstärkare Slutsteg

NuPrime STA-9X

Regular price 14 490 kr
Sale price 14 490 kr Regular price 14 490 kr
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    Orders placed before 3 PM on weekdays are shipped the same day - Free shipping on orders over 1000:- (within Sweden)

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NuPrime STA-9X Effektförstärkare Slutsteg Svart

NuPrime STA-9X

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Product description
NuPrime STA-9X, a 2 X 130 W Class A+D stereo power amplifier, bridgeable to a 330 W mono amplifier. Designed with an improved harmonic circuit that mimics the most attractive characteristics of tube and Class A amplifiers without suffering their drawbacks and limitations. The STA-9X's frequency response up to 50 kHz elevates vocals to an emotional experience, and the instruments' upper registers mimic the shimmering heights of a live performance.
The sound is a bit on the warmer side just like the STA-9, with significantly better dynamics, resolution, and speed. The 9X delivers 130% higher current than its predecessor.

The STA-9X amplifier is an evolution of the ULCAM (Ultra Linear Class A Module) Class D design of the STA-9 with design concepts from AMG-STA. By combining a robust, high-impedance amplifier circuit in the preamplifier stage with a Class D power stage with dual feedback, the STA-9X delivers warm and dynamic sound with remarkable speed and clarity. NuPrime improves the traditional Class D switching design by using a self-oscillating circuit to generate pulse-width modulation. The STA-9X switches at a frequency of 750 kHz (the highest on the market), which is far above the CD sampling frequency of 44.1 kHz. Most Class D amplifiers switch at 300 kHz or lower.

The ensemble is complemented by NuPrime's new linear power supply with a high-efficiency toroidal transformer for reduced high-frequency noise and better low-frequency performance. The damping effect of NuPrime's proprietary isolation feet absorbs and interrupts vibrations that degrade sound performance. The overall result is unmatched transient speed and an amazing level of dynamic power.
In summary, the NuPrime STA-9X has a soundstage that is generous, transparent, dynamic, luxuriously textured with exquisite upper registers.


  • The STA-9X Single End Non-Negative Feedback Class A and Dual Feedback Class D amplifier design is improved compared to STA-9 and originates from AMG STA. This design allows the STA-9X to produce more detail and higher resolution than the STA-9.
  • Stereo mode can be bridged to mono mode.
  • Improved harmonic overtone circuit that generates heat and natural sound characteristics.
  • Highly reliable in no-load condition and improved short-circuit protection.
  • 130% higher output current than STA-9 allows low-impedance speakers to achieve better dynamics and power.
  • It operates at a 750 kHz switching frequency and provides high resolution with extended frequency.
  • A new linear power supply with a high-efficiency toroidal transformer reduces high-frequency noise and improves low-frequency performance.
  • The signal path avoids coupling capacitors, providing a DC-level frequency response for pure musical enjoyment.


NuPrime sound:

  • Expansive soundstage
  • Wide, lightning-fast dynamics
  • Ultra-low distortion and noise
  • The music emerges from a pristine background, with a sense of detail and preserved nuances
  • In summary, NuPrime's sound character clearly differs from—and even surpasses—the soft, pleasant sound we often associate with most tube amplifiers or the dry, clinically sharp sound we often associate with solid state and switching technology. It is rare for an amplifier to achieve an ideal balance of richly textured timbres and overtones, authority in the bass register, astonishing dynamics, exquisite low-level detail, and a fully apparent, full-dimensional soundstage against a backdrop of vast silence.


Specifications:

  • Inputs:
  • RCA: Unbalanced input x 1
  • XLR: Balanced input x 1
  • TRIGGER IN (12V)
  • Outputs:
  • Stereo speaker output x 1
  • Mono speaker output x 1
  • TRIGGER OUT (12V)
  • Power: 2 X 130W / 1 X 330W @ 8 ohm
  • Peak output power: 2 X 170W / 1 X 370W @ 8 ohm
  • Input impedance: 47k ohms
  • Gain: x 28.5
  • Signal-to-noise ratio: > 90dB at 1W, 10W, 100W
  • THD+N: 0.005% (Stereo) / 0.005% (Mono)
  • Frequency response: 10Hz to 50kHz
  • Worldwide AC voltage: (115 VAC / 230 VAC) with voltage selector switch
  • AC fuse: Slow, 3A, 250VAC
  • Dimensions: 235 mm W x 281 mm D x 60 mm H (including feet)
  • Weight: 4 kg
  • Color: Black or silver
Shipping & Returns

Shop for over 990 SEK and we’ll ship for free!

If you order before 3 PM on weekdays, we will ship the same day, provided the item is in stock. Normal delivery time is 1-5 business days, but during high order volumes or for certain products, delivery may take longer. If any of the items you ordered are out of stock, we will notify you as soon as possible.

We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 14 days of delivery. For exchanges or purchases of a new item in connection with a return, we cover the return shipping cost. Please note, however, that there are exceptions where free return shipping does not apply, such as large and heavy items or expensive shipping relative to the item’s value. This is decided on a case-by-case basis.

What does our stock status mean?

In stock - Ships immediately the same day if ordered before 3 PM (weekdays)

3-8 days - In stock at supplier and ordered immediately

4-12 days - In stock at supplier and ordered immediately

Secure Shopping

We offer a warranty of at least 2 years on all products, and some items come with an extended warranty of up to 5 years. This way, you avoid costly insurance and can feel secure as a customer. If any issues arise during the warranty period, you are welcome to contact us, and we will resolve it quickly and smoothly.

- Versatile payment options and secure transactions. Invoice or installment payment with Klarna, card payment, etc.

- Fast deliveries: Orders received before 3 PM are shipped the same day

- Secure product delivery with reliable logistics partners (DHL & UPS)

- Price guarantee to ensure our customers get the best possible deal

- Fast & professional customer service via email and phone. (email responses within 24 hours)

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